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swiotlb: Convert swiotlb_force from int to enum

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Convert the flag swiotlb_force from an int to an enum, to prepare for
the advent of more possible values.

Suggested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Geert Uytterhoeven
2016-12-16 14:28:41 +01:00
committed by Konrad Rzeszutek Wilk
parent 6c206e4d99
commit ae7871be18
8 changed files with 27 additions and 18 deletions
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7
include/linux/swiotlb.h
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@@ -9,7 +9,12 @@ struct device;
struct page;
struct scatterlist;
extern int swiotlb_force;
enum swiotlb_force {
SWIOTLB_NORMAL, /* Default - depending on HW DMA mask etc. */
SWIOTLB_FORCE, /* swiotlb=force */
};
extern enum swiotlb_force swiotlb_force;
/*
* Maximum allowable number of contiguous slabs to map,